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-rw-r--r--sys/fs/procfs/procfs.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/fs/procfs/procfs.h b/sys/fs/procfs/procfs.h
index 2821aa2..9e051d4 100644
--- a/sys/fs/procfs/procfs.h
+++ b/sys/fs/procfs/procfs.h
@@ -37,7 +37,7 @@
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
*
* From:
- * $Id$
+ * $Id: procfs.h,v 1.15 1997/02/22 09:40:26 peter Exp $
*/
/*
@@ -85,6 +85,18 @@ struct pfsnode {
(bcmp((s), (cnp)->cn_nameptr, (len)) == 0))
#define KMEM_GROUP 2
+
+/*
+ * Check to see whether access to target process is allowed
+ * Evaluates to 1 if access is allowed.
+ */
+#define CHECKIO(p1, p2) \
+ ((((p1)->p_cred->pc_ucred->cr_uid == (p2)->p_cred->p_ruid) && \
+ ((p1)->p_cred->p_ruid == (p2)->p_cred->p_ruid) && \
+ ((p1)->p_cred->p_svuid == (p2)->p_cred->p_ruid) && \
+ ((p2)->p_flag & P_SUGID) == 0) || \
+ (suser((p1)->p_cred->pc_ucred, &(p1)->p_acflag) == 0))
+
/*
* Format of a directory entry in /proc, ...
* This must map onto struct dirent (see <dirent.h>)
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